Previously Twitter only showed Promoted Accounts besides the tweet feed on the left or within tweets in the tweet feed of the mobile app.
However, in a move to increase its monetization, Twitter will now show Promoted Accounts in the search results for an account and the promoted accounts appear first.
This will see advertisers spending to get more followers and this will definitely increase the spending by brands so as to get more reach and Twitter will definitely get a wider smile on the way to the bank.
Source: Twitter Blog